Dogcows Code - chaz/openbox/blob - otk/display.hh

   1 // -*- mode: C++; indent-tabs-mode: nil; -*-
   2 #ifndef   __display_hh
   3 #define   __display_hh
   4
   5 extern "C" {
   6 #include <X11/Xlib.h>
   7 }
   8
   9 #include <vector>
  10
  11 namespace otk {
  12
  13 class ScreenInfo;
  14 class BGCCache;
  15
  16 class OBDisplay
  17 {
  18 public:
  19   static Display *display;       // the X display
  20
  21   typedef std::vector<ScreenInfo> ScreenInfoList;
  22
  23 private:
  24   static bool _shape;          // does the display have the shape extention?
  25   static int  _shape_event_basep;   // base for shape events
  26
  27   static bool _xinerama;       // does the display have the xinerama extention?
  28   static int  _xinerama_event_basep;// base for xinerama events
  29
  30   static unsigned int _mask_list[8];// a list of all combinations of lock masks
  31
  32   static ScreenInfoList _screenInfoList; // info for all screens on the display
  33
  34   static BGCCache *_gccache;
  35
  36   static int xerrorHandler(Display *d, XErrorEvent *e); // handles X errors duh
  37
  38   OBDisplay(); // this class cannot be instantiated
  39
  40 public:
  41   static void initialize(char *name);
  42   static void destroy();
  43
  44   //! Returns the GC cache for the application
  45   inline static BGCCache *gcCache() { return _gccache; }
  46
  47   /*!
  48     Returns a ScreenInfo class, which gives information on a screen on the
  49     display.
  50     \param snum The screen number of the screen to retrieve info on
  51     \return Info on the requested screen, in a ScreenInfo class
  52   */
  53   inline static const ScreenInfo* screenInfo(int snum) {
  54     assert(snum >= 0);
  55     assert(snum < static_cast<int>(_screenInfoList.size()));
  56     return &_screenInfoList[snum];
  57   }
  58
  59   //! Returns if the display has the shape extention available
  60   inline static bool shape() { return _shape; }
  61   //! Returns the shape extension's event base
  62   inline static int shapeEventBase() { return _shape_event_basep; }
  63   //! Returns if the display has the xinerama extention available
  64   inline static bool xinerama() { return _xinerama; }
  65 };
  66
  67 }
  68
  69 #endif // __display_hh